Before 1994, boilers were equipped with this type of valve for safety in the water supply circuit. Today, modern storage boilers integrate this valve into the cold water inlet group within the boiler.
The function of this valve is to prevent overpressure on the domestic water side and at the same time act as a check valve. Broken check valves can be identified because they tend to warm the cold water at the tap or in the toilet tank.
Safety valves for boilers and water heaters play a crucial role in ensuring the protection and optimal functioning of the system. These valves limit the internal pressure, preventing damage and dangerous situations. When the pressure exceeds a preset safety level, the valve automatically opens to discharge the excess water, bringing the system back to a safe condition.
Safety valves are available in various types, including mechanical, electronic, and diaphragm valves. The choice of valve depends on the specific needs of the system, considering factors such as the maximum manageable pressure and the construction material.
The Role of the Safety Valve in Water Heaters
In addition to preventing overpressure, the safety valve in water heaters helps maintain the direction of water flow, preventing backflow into the main circuit. This is particularly important to protect the pipes and the appliance from pressure surges, which can occur during maintenance operations or due to seasonal variations in the water supply network.
Installation and Maintenance
The installation of the safety valve must be carried out by qualified technicians to ensure proper and safe mounting. During installation, the valve is fixed to the cold water inlet pipe, and a discharge pipe is connected to allow the excess water to flow out.
Regular maintenance of the safety valve is essential to ensure its proper functioning. This includes periodic checks of the operating pressure and cleaning of components to prevent the buildup of sediment and scale.
Signs of Malfunction
If a malfunction of the safety valve is suspected, it is important to act promptly. Signs of a potential problem include water leaks from the valve or abnormal variations in system pressure. In these cases, a specialized technician can perform an accurate diagnosis and proceed with the repair or replacement of the valve, if necessary.
To ensure accurate consumption measurement and system safety, it is essential to use high-quality valves that comply with current safety regulations.